külgne
Külgne is an Estonian adjective meaning neighboring or adjacent, used to describe things that lie next to or in close proximity to something else. The word is formed from the noun külg ("side") with the adjectival suffix -ne, and it follows standard Estonian agreement rules when modifying nouns.
In practice, külgne is common in geographical, urban-planning, and descriptive writing. It appears in compound phrases
Külgne is distinct from more general terms for neighborliness or proximity. In everyday language, speakers may